Making the following assumptions: the four charges in the above grid are point charges; each charge has magnitude 1.0 nc (nanocoulombs, and note that two are positive and two are negative); the grid spacing is 1.0 cm; all labeled points lie in the same plane as the charges. determine the magnitude and direction of the electric field at point q.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.